Deuteronomy 2:30
But Sihon king of Heshbon would not let us pass by him; for Yahweh your God hardened his spirit, and made his heart obstinate, that he might deliver him into your hand, as at this day.
Exodus 4:21
Yahweh said to Moses, "When you go back into Egypt, see that you do before Pharaoh all the wonders which I have put in your hand, but I will harden his heart and he will not let the people go.
Numbers 21:23
Sihon would not allow Israel to pass through his border: but Sihon gathered all his people together, and went out against Israel into the wilderness, and came to Jahaz; and he fought against Israel.
Exodus 11:10
Moses and Aaron did all these wonders before Pharaoh, and Yahweh hardened Pharaoh's heart, and he didn't let the children of Israel go out of his land.
Joshua 11:19-20
There was not a city that made peace with the children of Israel, except the Hivites, the inhabitants of Gibeon. They took all in battle.
Judges 11:20
But Sihon didn't trust Israel to pass through his border; but Sihon gathered all his people together, and encamped in Jahaz, and fought against Israel.
Isaiah 48:4
Because I knew that you are obstinate, and your neck is an iron sinew, and your brow brass;
Romans 9:17-23
For the Scripture says to Pharaoh, "For this very purpose I caused you to be raised up, that I might show in you my power, and that my name might be proclaimed in all the earth."